Lecture -6 Introduction-Different Theories of Earth Pressure; Lecture -7 Earth Pressure Theories; Lecture -8 Development of Bearing Capacity Theory; Lecture -9 Development of Uplift Capacity; Lecture -10 Point of Application of Passive Earth Pressure O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers. I use the Rankine active earth pressure and it works fine for me, why do I need anything else?”. A gravity retaining wall is shown below. >>

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– Should the wall be forced to move toward the backfill, for some reason, passive earth pressure will develop and increase the lateral earth pressure appreciably above that occurring in the at-rest state.

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/Length 4479 The factor of safety against sliding c. Calculate base pressures for both cases; - considering the passive pressure, and - neglecting it. 3.6 Lateral earth pressure for cohesion less soil 3.7 Rebhann‘s Condition and Graphical Method 3.8 Culmann‘s Graphical Method 3.9 Stability of slopes 33.10 Problems 3.11 Assignment Questions 3.12 Outcomes 3.13 Further reading 3.0 Objectives To understand earth pressure and its importance 6 0 obj Friction angle of soil: = 30 degree. How do you include seismic lateral stresses into determination of the design loading for a retaining wall? 4 0 obj

<< Calculation of lateral earth pressures by exclusive use of active earth pressure coefficients or by use of an equivalent fluid pressure of 30 pounds per cubic foot can lead to problems.

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the first three methods. The factor of safety against overturning b. << <>>>] >> 4.1.1 Lateral Earth Pressure Introduction, I heard a structural engineer bragging, “Active earth pressure, passive earth pressure, ‘at-rest’ earth pressure, who needs them? �v��/W� �;�(�bf/q��sHU전u���>����qO� /Pages 4 0 R

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endobj Terms of service • Privacy policy • Editorial independence, Get unlimited access to books, videos, and. stream As we discussed in Section 2.6, lateral earth pressure equations were developed ... Take O’Reilly online learning with you and learn anywhere, anytime on your phone and tablet. stream Example 1: Rankine's lateral earth pressure with horizontal backfill (English units) Given: Height of earth at heel, H = 12 ft. 9 0 obj Categories of Lateral Earth Pressure There are three categories of lateral earth pressure and each depends upon the movement experienced by the vertical wall on which the pressure is acting as shown in Figure 2 (Page 4). endobj

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In this course, we will use the word wall to mean the vertical plane on which the earth pressure is acting.

4.1.2 Lateral Earth Pressure – The Problem. ���{Q�ozB�!��J���.�������a��(5��6��ĵ��dy�u�*�Ks*������I����病��n��!KNX�߼��kH�l�����>t���lO� Use =2/3 and Coulomb active earth pressure theory. Determination of the lateral earth pressure is a problem that must consider the lateral soil strains that develop in the soil mass. %PDF-1.7